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There are some key words that you need to know for circles: radius, circumference, diameter, sector, segment, tangent, chord and arc. In this video you will discover what they all mean.

This video discusses the topic of circles.

This video explains the equation of a circle.

Three activities which illustrate the law of exponents.

This is a simple video which describes how indices problems are solved using simplified laws.

This video explains how pie charts can be used to display data in a more 'user-friendly' way.

Online problems where the student is required to simplify the expression using the product property of exponents.

An activity explaining the properties of exponents.